EP1050852A3 - Blending colors in the presence of transparency - Google Patents

Blending colors in the presence of transparency Download PDF

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Publication number
EP1050852A3
EP1050852A3 EP00303663A EP00303663A EP1050852A3 EP 1050852 A3 EP1050852 A3 EP 1050852A3 EP 00303663 A EP00303663 A EP 00303663A EP 00303663 A EP00303663 A EP 00303663A EP 1050852 A3 EP1050852 A3 EP 1050852A3
Authority
EP
European Patent Office
Prior art keywords
color
alpha
transfer mode
xfade
calculating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00303663A
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German (de)
French (fr)
Other versions
EP1050852A2 (en
EP1050852B1 (en
Inventor
Mark Hamburg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adobe Inc
Original Assignee
Adobe Systems Inc
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Filing date
Publication date
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Application filed by Adobe Systems Inc filed Critical Adobe Systems Inc
Publication of EP1050852A2 publication Critical patent/EP1050852A2/en
Publication of EP1050852A3 publication Critical patent/EP1050852A3/en
Application granted granted Critical
Publication of EP1050852B1 publication Critical patent/EP1050852B1/en
Anticipated expiration legal-status Critical
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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/50—Lighting effects
    • G06T15/503—Blending, e.g. for anti-aliasing

Abstract

Methods and apparatus for blending colors in the presence of transparency. The method includes blending a lower and an upper graphic element in accordance with a transfer mode by calculating a transfer color from a lower element color and an upper element color according to the transfer mode without regard either to a lower element alpha or to an upper element alpha; calculating a resulting alpha from the lower element alpha and the upper element alpha without regard to any of the lower element color, the upper element color, or the transfer mode; and calculating a resulting color as a weighted average of the lower element color, the transfer color, and the upper element color. The transfer mode can be an arbitrary transfer mode and can be user defined. The resulting graphic element 〈C,c〉 having color value C and alpha value c can be calculated in accordance with
  • 〈C,c〉 = XFade ( 〈A,a〉, XFade ( 〈B,1〉, 〈T(A,B), 1〉, a), b),
    • where XFade (〈X,x〉, 〈Y,y〉, z) = 〈R,r〉 is an operation defined by the formulas
    • r = InterpolateAlpha (x, y, z),
    • t = y·z / r, and
    • R = InterpolateColor (X, Y, t)
    and where the lower element is 〈A,a〉 and the upper element is 〈B,b〉. Each of the colon A, B, and C can be defined by a value for each of a plurality of colorants. The calculated values can defined by c = a + b - a·b, and C = A·(1 - (b / c)) + B·(1 - 1)·(b / c) + T(A, B)·a·(b / c).
    Figure 00000001
    EP00303663A 1999-05-06 2000-05-02 Blending colors in the presence of transparency Expired - Lifetime EP1050852B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    US09/306,374 US6421460B1 (en) 1999-05-06 1999-05-06 Blending colors in the presence of transparency
    US306374 1999-05-06

    Publications (3)

    Publication Number Publication Date
    EP1050852A2 EP1050852A2 (en) 2000-11-08
    EP1050852A3 true EP1050852A3 (en) 2002-11-06
    EP1050852B1 EP1050852B1 (en) 2005-07-27

    Family

    ID=23185010

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00303663A Expired - Lifetime EP1050852B1 (en) 1999-05-06 2000-05-02 Blending colors in the presence of transparency

    Country Status (5)

    Country Link
    US (1) US6421460B1 (en)
    EP (1) EP1050852B1 (en)
    JP (1) JP4610043B2 (en)
    CA (1) CA2308739A1 (en)
    DE (1) DE60021468T2 (en)

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    US6768774B1 (en) 1998-11-09 2004-07-27 Broadcom Corporation Video and graphics system with video scaling
    DE69917489T2 (en) * 1998-11-09 2005-06-02 Broadcom Corp., Irvine DISPLAY SYSTEM FOR MIXING GRAPHICAL DATA AND VIDEO DATA
    US6636222B1 (en) 1999-11-09 2003-10-21 Broadcom Corporation Video and graphics system with an MPEG video decoder for concurrent multi-row decoding
    US6853385B1 (en) * 1999-11-09 2005-02-08 Broadcom Corporation Video, audio and graphics decode, composite and display system
    US7982740B2 (en) 1998-11-09 2011-07-19 Broadcom Corporation Low resolution graphics mode support using window descriptors
    US6661422B1 (en) 1998-11-09 2003-12-09 Broadcom Corporation Video and graphics system with MPEG specific data transfer commands
    US6573905B1 (en) 1999-11-09 2003-06-03 Broadcom Corporation Video and graphics system with parallel processing of graphics windows
    US9668011B2 (en) 2001-02-05 2017-05-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Single chip set-top box system
    US7453459B2 (en) * 2001-02-26 2008-11-18 Adobe Systems Incorporated Composite rendering 3-D graphical objects
    US7171057B1 (en) 2002-10-16 2007-01-30 Adobe Systems Incorporated Image blending using non-affine interpolation
    US20040083430A1 (en) * 2002-10-29 2004-04-29 Boonen Paul J. J. Method and apparatus to process portable document format data containing transparency
    US7136075B1 (en) * 2003-08-26 2006-11-14 Adobe Systems Incorporated Compositing in the presence of different transparencies
    US8063916B2 (en) 2003-10-22 2011-11-22 Broadcom Corporation Graphics layer reduction for video composition
    JP3779305B2 (en) * 2004-02-06 2006-05-24 財団法人砂防フロンティア整備推進機構 Storage medium storing program for browsing sabo related information and system for browsing sabo related information
    US7340316B2 (en) * 2004-06-28 2008-03-04 Hanger Orthopedic Group, Inc. System and method for producing medical devices
    AU2005201930B2 (en) * 2005-05-06 2009-02-19 Canon Kabushiki Kaisha Simplification of alpha compositing in the presence of transfer functions
    US7499587B1 (en) * 2005-05-31 2009-03-03 Adobe Systems Incorporated Method and apparatus for interpolating colors
    AU2005229627B2 (en) * 2005-10-31 2009-01-22 Canon Kabushiki Kaisha Implementing compositing operations on images
    US7965299B2 (en) * 2005-10-31 2011-06-21 Canon Kabushiki Kaisha Implementing compositing operations on images
    US20070133019A1 (en) * 2005-12-13 2007-06-14 Microsoft Corporation Transparency printing
    US7747951B2 (en) * 2006-02-28 2010-06-29 Eastman Kodak Company System and method for processing version content
    US7826683B2 (en) * 2006-10-13 2010-11-02 Adobe Systems Incorporated Directional feathering of image objects
    US7973797B2 (en) 2006-10-19 2011-07-05 Qualcomm Incorporated Programmable blending in a graphics processing unit
    US7750922B2 (en) * 2006-10-24 2010-07-06 Adobe Systems Incorporated Transparency group computation on a graphics processing unit
    JP5120987B2 (en) * 2008-07-24 2013-01-16 トムソン ライセンシング Apparatus, method and system for image processing
    US8370759B2 (en) 2008-09-29 2013-02-05 Ancestry.com Operations Inc Visualizing, creating and editing blending modes methods and systems
    US8264701B2 (en) 2009-08-18 2012-09-11 Xerox Corporation Printing graphics with transparency on a postscript enabled image forming device
    JP5411049B2 (en) * 2010-04-07 2014-02-12 オムロン株式会社 Image processing device
    US20130007602A1 (en) 2011-06-29 2013-01-03 Apple Inc. Fixed layout electronic publications
    US8860773B2 (en) 2012-10-17 2014-10-14 The Mitre Corporation Telepresence for remote collaboration with a gestural interface
    US8948509B2 (en) 2012-11-15 2015-02-03 Adobe Systems Incorported Blending with multiple blend modes for image manipulation
    US9052851B1 (en) 2014-02-04 2015-06-09 Ricoh Company, Ltd. Simulation of preprinted forms
    GB2532953A (en) * 2014-12-02 2016-06-08 Ibm Overlay display
    JP2017162153A (en) * 2016-03-09 2017-09-14 富士ゼロックス株式会社 Image processing apparatus, image processing system, and program
    CN108572144B (en) * 2017-03-08 2020-08-21 中国农业大学 Method for evaluating quality of eggshell glue protective films with different colors

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    US5874967A (en) * 1995-06-06 1999-02-23 International Business Machines Corporation Graphics system and process for blending graphics display layers
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    Non-Patent Citations (2)

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    Title
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    Also Published As

    Publication number Publication date
    CA2308739A1 (en) 2000-11-06
    EP1050852A2 (en) 2000-11-08
    DE60021468D1 (en) 2005-09-01
    JP2001005957A (en) 2001-01-12
    EP1050852B1 (en) 2005-07-27
    US6421460B1 (en) 2002-07-16
    JP4610043B2 (en) 2011-01-12
    DE60021468T2 (en) 2006-04-20

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